This is the first "MIB" to give the agents a whiz-bang modern car. The most modern vehicle previously was a "new hotness" 2003 Mercedes-Benz E550 in the 2002 sequel, but that was primarily a joke referring to the 1986 Ford LTD, referred to as a "Ford P.O.S.," in the first movie. The third film, which took place in the sixties, used a 1964 Ford Galaxie.
"MIB: International" includes a few throwbacks to the movies and the television series. The RC F goes airborne with the help of a big red button, just like that '86 LTD. A bigger and better hovercycle ties into the hovercycle from the TV show. The all-new move comes with a mid-seventies Jaguar XJ; whereas the first agents merely retrieved their weapons from the trunk, the XJ not only holds weapons, it disassembles into weapons systems.
As Jalopnik noted, in many ways this movie "looks just like 'Thor: Ragnarok' but set in a different universe." Should go well enough with a bucket of popcorn and pail of Coca-Cola, though.